Abstract
Thiobacillus intermedius was isolated from a salt marsh sediment with an interstitial water salinity of 30‰. This bacterium was cultured in a chemostat for 9 months. The optimum salinity for CO2 fixation by this Thiobacillus was 10‰, much less than the salinity of its natural environment. Respiration of cultures increased at high salinities and the pathway of thiosulfate oxidation was altered so that polythionates accumulated rapidly. One ecological conclusion from these results is that in nature this bacterium probably grows at its maximum possible rate only rarely.
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Smith, D.W., Finazzo, S.F. Salinity requirements of a marine Thiobacillus intermedius . Arch. Microbiol. 129, 199–203 (1981). https://doi.org/10.1007/BF00425250
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DOI: https://doi.org/10.1007/BF00425250